reeffreak,
It depends on your definition of "reef safe". Almost all of them can be kept with "noxious soft corals", meaning leathers and the like. Many are safe with SPS corals. The trick is to find the specimens that are going to leave your LPS alone. I have a trick that works for me, and for over two months now, none of my 3 hammers, frogspawn or even xenia have been nipped at. If you are just going to keep SPS corals, Emperors, Queens, Blue-faced, French, Blue, all the biggies are going to be "OK" - just keep them well fed.
If you are planning on having lots of LPS, a few have better reps than others, Regal, Majestic, Scribbled and Emperors seem to be better bets than others. There is still a risk, but can be done. Make sure you add all your corals BEFORE introducing any large angel, they will pick on anything else you add to your tank. I have tried to add three different colt corals to my tank since having my angels and they will not let it in. They have ravaged each one, even though colt corals are supposed to be "noxious".
The only true "reef safe" angels are Lamark's and Watanabe's, but they only get about 6-8 inches and I don't think their color patterns are worth the tank space. IMHO, if you are going to do angels - go for the breath-taking ones that knock off your socks. Buy them about 6-8 inches in length so they start off looking good. Even if you can only keep leathers, you can get a mess of nepthia, spaghetti, colt, toadstool, mushrooms, finger and yellow tonga leathers that will rock your world as a background to a full grown French or Queen. Just the thought makes me drool all over myself.
I have a whole lot of rambling that I could do on my experiment with big angels and reefs, but I will reserve the rest unless you are really interested. Just avoid those pigmy angels, they tend to be more aggressive toward corals than the big angels - especially that rotten lemon-peel thing-er...hate that fish.
-Dr Marco :sfish: